Kohler 18RESNT Funzionamento - Pagina 28

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3.5.1

Precleaner Service

Use the following procedure to wash and reoil the

precleaner as indicated in the service schedule. Wash

and reoil the precleaner more often under extremely

dusty or dirty conditions.

1. Place the generator set master switch in the OFF/

RESET position.

2. Disconnect the power to the battery charger.

3. Disconnect the battery, negative (--) lead first.

4. Loosen the cover retaining knob and remove the

cover. Remove the precleaner from the paper

element. Wash the precleaner in warm water with

detergent. Rinse the precleaner thoroughly until all

traces of detergent are eliminated. Squeeze out

excess water (do not wring). Allow the precleaner

to air dry.

5. Saturate the precleaner with new engine oil.

Squeeze out all of the excess oil.

6. Reinstall the precleaner over the paper element.

7. Reinstall the air cleaner cover. Secure the cover

with the cover retaining knob.

8. Reconnect the power to the battery charger.

9. Reconnect the generator set engine starting

battery, negative (--) lead last.

3.5.2

Paper Element Service

Use the following procedure to replace the paper

element at the intervals specified in the service

schedule. Replace the paper element more often under

extremely dusty or dirty conditions.

1. Place the generator set master switch in the OFF/

RESET position.

2. Disconnect the power to the battery charger.

3. Disconnect the generator set engine starting

battery, negative (--) lead first.

4. Loosen the cover retaining knob and remove the

cover.

5. Remove the element cover nut, element cover, and

the paper element with precleaner.

6. Remove the precleaner from the paper element.

Note: Do not wash the paper element or clean it

with pressurized air, as this will damage the

element.

Section 3 Scheduled Maintenance, 12 kW Models

7. Replace the element if it is dirty, bent, or damaged.

8. Check the air cleaner base. Make sure it is secure

and not bent or damaged. Also check the element

cover for damage and fit. Replace all damaged air

cleaner components. Remove any loose dirt or

debris from the air cleaner base. Wipe the base

carefully so that no dirt drops into the intake throat.

Check the condition of the rubber seal on the air

cleaner stud and replace the seal if necessary.

9. Reinstall the paper element, precleaner, element

cover, element cover nut, and the air cleaner cover.

Secure the cover with the cover retaining knob.

10. Reconnect the power to the battery charger.

11. Reconnect the generator set engine starting

battery, negative (--) lead last.

3.6 Cooling System

The engine fan draws cooling air through the openings

in the sides and end near the battery. The alternator fan

draws cooling air through openings on the side walls of

the enclosure. The cooling air mixes with the engine

exhaust and is discharged at the exhaust outlet. See

Figure 3-7. To prevent generator set damage caused by

overheating, keep the housing cooling inlets and outlets

clean and unobstructed at all times.

Note: Do not block the generator set cooling air inlets or

mount other equipment above them. Overheating

and severe generator damage may occur.

1. Exhaust outlet

2. Alternator air intake (both sides)

3. Engine air intake

Figure 3-7 Cooling Air Intake and Exhaust

TP-6517 4/09

tp6195